buttles



C. A. BUTTLES.

Stovepipe Thimble No. 95,649. Patented Oct. 12, I869,

tanner gala patent .otjljiire;

Letters Patent No. 95,649, dated 00am 12,1so9r STOVE-PIPE THIMBLE.

The Schedule referred to in theseI-etters Patent and making part of the same To all-whom itmay concern Be it known'that I, G. A. Bn'rrnns, of Milwaukee, in the county of Milwaukee, and State of Wisconsin, have invented certain new and useful Improvements in Cylinder-Rings or Heads for-Stove-Pipe Holes and 1 do hereby declare the following to be a full, clear, and. exact description of'the construction and operation of the same, reference being had to the accompan ing drawings, making a part of this specification, in which- Figure lrepresents a perspective view of the. top of the cylinder-ring or-upper side;

Figure 2 represents a. similar view vof the bottom thereof, or under side; and

' Figure 3 represents a section, taken transversely through the ring.

Similar letters of reference, where they occur in the separate-figures, denote iike" parts of the ring or head in all of the drawings.

The object of my invention is .to make a-cheap, ef-- ficient, and at the same time sightly ring or head, to set in a floor or partition, for a stove-pipe to pass through; and

My invention consists in making such a ring or head of an' upper and under circular rim of cast-metal with suitable opening through them; said upper rim being hat, and flanged to catch and hold upon the floor or against apartition, to prevent it from passing through the opening made for its body, and the under rim made conical, and the two rims united by an interior and exterior band of thin sheet-metal, as and for purposes to be explained.

To enable others skilled in the art to make and use my invention, I will proceed to describe the same, with reference to the drawings. v

The upper plate or rim A is cast with a series of holes, a a, 8m, through it, and with a flange, b, upon it, said flange being for the purpose of catching the outer band 0 of tin or other sheet-metal.

The under plate or rim B, instead of being flat, as the upper one is, is cast of aconical or flaring form, and with holes or o'penings, c, of much greater area than those of the upper rim or plate.

This under plate or rim B has a diameter equal to the diarnetric proportions of the flange, b on the upper rim, so that the sheet-metal band C, that catches upon the flange of the upper plate or rim, may have its under edge turned over upon or abutted against a very slight projection, (I, on the exterior edge of the I under rim or plate, the latter plan being preferable,

and all-suflicient,.as this band needs only to keep the two rims apart, whilst the inner band-D has its edges turned over the edges of both the upper and under rim, to hold them together.

. The object in making what I term the bottom or under-rirrTconical or flaring is twofpld: First, it saves stock in making the inner band D, which is importaut, as its conicalfonn compensates for the'stock taken in turning the edges of the band over upon the upper and under plates, to hold them together, and thus makes the sheets of tin, which are of certain sizes, always out to.'better' advantage, and without waste of stock. Second, the flaring form so given to the rim, allows or admits ofsuch dirt, lint, or sweepings as may and does fall through the ring or head from above to be directed away from the stove-pipe and toward the outer edge of the cylinder, where it is less liable to ignition, and making'it mnch'safer than any others of which I have knowledge, on this account.

The, difference of area of openings in' the upper and under rims guarantees that whatever falls through the upper holeswill not remain in the ring or head, where it would be subject to ignition, but will readily drop out of or through the greater openings in the under rim. 1

The openings in the head or ring are indispensable, viz, that air may circulate through thering or head,.'-and prevent it from becoming dangerously heated by the stove-pipe passing through or in contact with it.

-The under plate 13 is also flanged, as ate, for the' outer band C to rest upon or against.

Having thus fully described my invention, its uses and purposes,

What I claim as new, and ters Patent, is'- A ring, head, orcylinder for stove-pipe holes, composed of an upper and an under cast-iron rim, with openings through them, as and for the purpose described, the upper rim flatand. flanged, the under one conical or flaring, and the two held together and sustained by the outer band 0 and the inner band B, as describedand represented, and for theppurposes and objects set forth.

desire to secure by fist- O. A. BUTTLES.

\Vitnesses I. S. CLARK, Geo. O. MARKHAM. 

